No hot wiring, this sensor light controlled cover plate fits most traditional switch boxes with simple two-screw installation by replacing the existing cover plate. Ever want auto night lights in specific rooms or locations that allows you to find light switch at night? This is the night-light solution for you, unlike most other competitors, this unit comes with an on/off switch. Light sensor triggers turn on as darkness occurs and off as more natural light becomes available. Under normal conditions it's a 20 to 45 second installation.